'Write-off' is a fiscalrelated to finances and accounting term that refers to the intentional reduction of the book valuevalue of asset as per accounting records of an asset to zero, often due to irreparable damage or significant depreciationdecrease in value over time. In a colloquialused in ordinary or familiar conversation context, 'write-off' implies the dismissal of something or someone as irrelevant or having negligibleso small to be ignored worth.